# USACE Memphis. vs Staslink

The clearest difference is in-app purchases: USACE Memphis. at none against Staslink's 8. USACE Memphis. also leads on iOS requirement (11.0 vs 15.6). Staslink's advantage is update cadence (every 2 months vs every 9 months). On price, ads and device support there is nothing between them.

Both are free to download. Staslink sells 8 in-app purchases, starting at $2.99 per 7 days. USACE Memphis. asks for nothing beyond the download.

USACE Memphis. ships an update every 9 months, Staslink every 2 months. The most recent releases landed on October 26, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | USACE Memphis. | Staslink |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.4 (20K ratings)](https://appshunter.io/ios/app/staslink-satellites-tracker/id1515415038/reviews)** |
| Number of ratings | — | **20K** |
| Positive reviews | — | 56.6% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 9 months | **Every 2 months** |
| Monetization | — | Free with in-app purchases |
| Size | 32 MB | 98 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [United States Army Corps of Engineers](https://appshunter.io/developer/1492095154) | [SMART WIDGET LABS COMPANY LIMITED](https://appshunter.io/developer/1561934122) |

## What reviewers say

### USACE Memphis.

[App page](https://appshunter.io/ios/app/usace-memphis/id1492095155)

**In-app purchases:** none


### Staslink

[App page](https://appshunter.io/ios/app/staslink-satellites-tracker/id1515415038)

Track the International Space Station and Starlink satellites with real-time live maps and HD video feeds from NASA. Get personalized reminders for optimal viewing times and explore the universe from an astronaut's perspective.

**Highlights:** Live ISS & Starlink camera feed from NASA, Real-time global tracking with Live Map, Reminders for upcoming satellite visits, Visibility predictions and statistics, HD video of Earth from ISS, Smart Tracking Engine

**Features:** Family Sharing, Vision Pro support

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium Tracking | $2.99 | per 7 days |
| Weekly Freetrial | $3.99 | per 7 days |
| Weekly Freetrial | $4.99 | per 7 days |
| Weekly | $5.99 | per 7 days |
| Monthly Premium | $12.99 | per month |
| Lifetime Premium | $24.99 | one-time |
| Lifetime | $29.99 | one-time |
| Lifetime | $34.99 | one-time |

**What reviewers like**

- 👍 Easy setup
- 🚀 Fast internet speeds
- 💡 Useful satellite tracking
- 🔍 Informative app

**What reviewers complain about**

- 🐛 Inconsistent performance
- 🤔 Unclear instructions
- 💰 Expensive subscription
- 🚫 Limited free features

**Reported bugs**

- App freezing and crashing
- Incorrect satellite pass times
- Location detection issues
- Incompatibility with older devices

**Requested features**

- Ability to track specific satellites
- Improved location selection and storage
- Satellite pass notifications
- 3D sky view for better satellite visualization


## Frequently asked questions

### Is USACE Memphis. free?

USACE Memphis. is free to download, with no in-app purchases.

### Is Staslink free?

Staslink is free to download, with in-app purchases available.

### Do USACE Memphis. or Staslink have ads?

Both USACE Memphis. and Staslink show ads.

### Which is updated more often, USACE Memphis. or Staslink?

USACE Memphis. ships an update every 9 months, and Staslink every 2 months. Most recently, USACE Memphis. was updated on October 26, 2026 and Staslink on October 30, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*